Improvement in cutter-heads for planers



2 Sheets-Sheet 2.

J. MORE.

GUTTER HEAD'POR PLANPR-l PatentedOot. 4, 1870.

the igures.

W waited-.giant atentdtlijlira JonNnoRn, or NEW YORK, Nl Y.

` Leuegs menta-Na 107,943, dated october 4, 1870.

iivienovEMEN-l-IN corren-HEADS Fon sinuses,

The Schedule referred to in these `Letters Patent and making partici the same.

To all whom 'it may concern Be it known that I, JOHN MORE,'oi` the' firm of o f DUKE 86 MORE, carpenters and builders, of the city and county of Ne\v .York inthe State `of New York, have invented certain new and useful Improvements in Cutter-Heads for the Woodworth or Cylindrical I PIaning-Machines; andl do hereby declare thcl followiu'gis a full aud exactdescription thereof.

I castthe cutter-head withv regularly-warped or twisted seats on its exterior for the cutter, and, h avmg forged or otherwise produced the cutters in a `corresponding form, secure them 'firmly thereon by bolts, which allow them to be set forwardiandbackward to adjust their relative depths of cut, as also to provide for their being moved forward by degrees as their edges are ground `away.;`

rI`he cutter-shaft audits connections maybe mounted and driven, in all respects, 'in'` the ordinary manner.

There may be more than one cutter-shaft in the same` machine, and, one only, or both, may be thus coristructed- Figure 3 is a cross-section on the line S S in g. 1, and

Figure `4 is a perspective view, showing the relation of this peculiar cutte1'head;and its adjuncts to the feed-rolls and to the other parts cfa cylindrical planing-machine.

Similar letters oirrefel-ence' indicate like part'sin all Referring to the drawing-'- i A is the head, and

A' A the Warped or twisted surface on which the critters are screwed,

B `B are the twisted or warped cutters, and

C C are bolts, which are tapped strongly into the material of' the head, and, standiug in slots as repre` sented, allow the cutters to be set forward and backward,as is necessary to adj ust them properly,

.To grind my cutters truly, I can support the shaft temporarily in fixed or movable bearings, adjacent, to the griudstone, and can turn-thc head A and its connections either rapidlyor slowly, so as topresent all partsof the edges in the right position to the stone.

I can face the sides44 of. the cutters by' holding them separately on the stone by hand, either before orl after, thus'produciug theproper spiral contour 'of the A I- have had one head with a set ofv these cuttersin successful operationseve'ral weeks, an d believe=that .with a little experience any ordinarily good mechanic will find no troublel in constructing the parts and in keeping them in good condition.

The edge being presented to the wood'with a draw vingcut makes it to planegsmoo'tlier.

I `can, with my `improved cutter-head, take oli' a larger shaving or reduce'the thickness of the lumber. toa greater extent at asingle operation, and leave the wood much smoother than with any of the ordi'- nary cutters and cutter-heads which I have ever used or seen used.

The :great mass of the shavingso'r'chips is thrown obliquely' to yone side,.rwhere it produces 11o diffil' .cu1ty.

I propose to make 'thesecutter-heads.by skilled workmen, and to supply them to mannfacturers'of machines, or to be introduced into. machines -alreadyin use. I propose tomake two kinds,'onerighthanded and one left-handed, solas tothrow the chips'to the right-hander to the left-hand side of themaehiue, laccording. as the machine shall chance to be'lceated relatively to the steam-boiler or to the spout orother means'through which theshavings'are discharged.

M represents the general framework of the machine, and

Bl Il2 a pair of feeding-rolls, driven slowly, byproper h elts or other connections from the operating power.

' The drawing represents the novel parts ,with so much of the -ordinary parts as is necessary to indi-[ cate ther'relation thereto.

.The feeding mechanisxnl'and also the provisions for raising and lowering the litter-shaft, and for adapting-the feeding-rolls and discharging-rolls' to operate on thick aud'thinstnii, and the several other' details of the mechanism, may b e of the ordinary character 4necl'es'sary forthe Woodworth or cylindrical planingmachines.

I am now using the invention in my regular business, and find an appreciable saving in power to result-froni itsuse.

The machine planes two feet Wide, and feeds at the rate .of forty feet per mingute. I can plane smoothly cross-grained and eat-y'. wood, which could not be planed nearly as smooth with the ordinary cutters. I can plane oit a'halt' inchiat a single cut from a wide board yor plank of oak, ash, or Walnut.

.I have not discovered any difficulty attending the use of th'e'inveution. I had anticipated a tendency to runthe board or other' lumber to one side, but do not detect any in practice.

The planer in which I- am using the improved head and cutters requires, with a common head andl cutter, about fifteen horse-power. It requires, with the improved head und cutters, about eight horsepower, under the sume conditions, and doing the same, but better Work. 4

I do not claim twisted cutters, broadly, those being certainly :is oid as 1818; but, having now fully described my invention, with what I consider thc best means of carrying it into effect,

I claim as new- The cutter-head A, hereinl described, iu combinaytion with corresponding cutters B and feeding mech-A :mism B1 B2, arrnngedfor joint operation, as and for the purposes herein set forth and des Jribed.

In testimony whereof, I have hereunto set my name in presence of two subscribing witnesses.

Witnesses; y

WM'. G. DEY, A. HOERMANN. 

